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Cosworth briefly crows that Aston Valkyrie's 6.5L V12 has record horsepower

It's only natural that Cosworth would want the world to know that it's building the world's most powerful naturally-aspirated engine for the Aston Martin Valkyrie and Valkyrie AMR Pro. The timing of when the world should know about it, that's at issue. Yesterday the English engine maker's official Twitter account posted a picture of the barely-there coupe and the line, "We're famous for breaking records and our latest engine, the Aston Martin Valkyrie 6.5-litre V12, will be the world's most powerful naturally aspirated road engine with 1,130bhp." Two tags accompanied the post, #Cosworth and #AstonMartinValkyrie. About 90 minutes later, the tweet disappeared. The likely issue is that Cosworth got ahead of Aston Martin's official confirmation of Valkyrie outputs, something we're more used to from patent offices and Chinese model makers. The question is what output is Cosworth really talking about, and which car. All of last year, however, various reports had the street-legal Valkyrie making 1,130 hp. A Road & Track report attributed "nearly 1,000 hp" coming from the NA V12, the remaining 130 from a kinetic energy recovery system working the front axle. Hence, we're not sure if Cosworth's talking about its own engine alone at 1,130 hp, or its engine with the KERS. But then there's this: At the launch of the Valkyrie AMR Pro during the Geneva Motor Show this year, Aston Martin said the track-only Valkyrie AMR Pro would enjoy "a combined power output of more than 1100 bhp — more than the Valkyrie road car and a figure than comfortably exceeds the magic 1:1 power-to-weight ratio." The truth's a mystery for now, which is just as Aston Martin would want it. If Cosworth's engine really does make 1,130 hp on its own, that would be monstrous, and it would mean the automaker's been playing a serious game of English understatement. Even if Cosworth included the hybrid help, however, an NA V12 with 1,000 ponies would take the crown. The only competition is the 6.5-liter V12 in the Ferrari 812 Superfast, and that's 211 horses adrift. The quad-digit figures expected from Mercedes-AMG Project One and McLaren Speedtail require turbochargers, as does the just-teased V8 going into the Shelby Tuatara. With the first of 150 Valkyrie road car deliveries scheduled for next year, we probably don't have that much longer to wait to find out. Related Video:

Historic race cars highlight the RM Sotheby's 2023 Le Mans sale

Auction house RM Sotheby's is celebrating 100 years of the 24 Hours of Le Mans by organizing a big sale on the day before the race. The cars scheduled to cross the auction block have all spent time on the track, and the catalog shows how racers have evolved since the 1930s. Browsing through RM's auction catalog is like taking a five-minute course in the history of racing. The oldest car is a 1932 Aston Martin Le Mans 'LM8' that's had a remarkable life. It was developed and built for competition and entered in the 1932 24 Hours of Le Mans by the Aston Martin factory team, where it finished seventh. It was ultimately sold to a private owner but it survived, which shouldn't be taken for granted: teams often destroyed obsolete race cars, and the list of special vehicles that didn't survive World War II is longer than you'd think. Paul Sykes bought the car in 1955 and used it as his daily driver. Imagine walking out of a shop in a British village in the 1960s and finding a 1932 race car parked next to your Mini. Sykes ultimately bought another daily driver, but he kept the Aston Martin for a total of 55 years. The second-oldest car is a 1936 Delahaye 135 S with a body by coach builder Pourtout. RM notes that this is one of the most significant pre-war competition Delahaye models and adds that it finished second in the 1938 edition of the 24 Hours of Le Mans. It continued racing until 1956 and then spent several decades hidden in storage. It was fully restored in 2005, and it's now eligible to compete in historic races such as the Mille Miglia and the Le Mans Classic. Restoring it was easier said than done: the car was rebodied twice before being tucked away. None of the cars crossing the block were built in the 1940s, so we skip ahead to the 1950s with a 1954 OSCA MT4 by Morelli. It's one of 72 built, according to RM, and only 19 of those were fitted with the twin-cam, 1.5-liter 2AD engine. It raced at Le Mans in 1954 but ended up disqualified following an accident. Another highlight from the 1950s is a 1958 Lister-Jaguar 'Knobbly' finished in yellow and green. We said that all of the cars crossing the block have spent time on the track, but that doesn't mean they were built to race. The 1963 Ferrari 250 GTE 2+2 Series III is a street-legal model, yet it's included in the auction because it was used as a safety car during the 1963 edition of the race.

Aston Martin fleet week: Next vessel to sail is a luxury submarine

Aston Martin's latest project aims to go beneath the surface, literally. It announced Thursday a partnership with a Florida-based developer of submersibles to develop a strictly limited-edition, deep-diving submarine code-named Project Neptune. The luxury brand is apparently making quite a splash at the Monaco Boat Show this week, having just revealed the AM37, a 37-foot, six-passenger, two-crew-member speedboat replete with natural teak sliding decks and custom-outfitted interior that will cost $1.6 million. For Project Neptune, the British marque is joining forces with Triton Submarines, which makes luxury submarines for superyacht-owning hobbyists as well as more robust models for scientists and filmmakers that are capable of exploring the deepest parts of the ocean. Plans call for marrying Triton's Low Profile three-person platform with the automotive brand's design and engineering language, under the direction of its Chief Creative Officer, Marek Reichman. Aston Martin Consulting will oversee the project. No details yet, but Triton's existing 1650 Low Profile three-person sub, its lightest model, weighs 8,800 pounds and can dive to 1,650 feet. A 30 kWh battery powers four 5-horse thrusters, and it can stay submerged for up to 12 hours. The most dramatic part of Triton's design is its incredible bubble shape — a spherical, transparent pressure hull. Some of Triton's more rigorous designs can reach depths of 7,500 feet. A Triton sub reportedly starts at a cool $3.3 million, and it's certainly nice, with stitched leather seats. But that, of course is a crude version compared with Aston Martin's panache and uber-exclusive materials. Pass the caviar, won't you, old boy? Related Video: Weird Car News Aston Martin Luxury submersible